 But bought it, they did. Now, President Biden's campaign has repeatedly dodged answering a point-blank question about whether Biden plans to take any drugs to enhance his performance during the debate. Biden's opponent on the debate, former President Trump, has led a rising chorus that has come to include lawmakers demanding that Biden take a drug test. By the way, Trump has agreed to take a drug test. Those advocating a screening suggest that Biden may be motivated by a desire to quell mounting concerns about his mental acuity.